Sash-fastener



R 0. WHEELER.

SASH FASTENER.

APPLICATION FILED JULY 1, 1918.

Patented 0011.26, 1920.

122112128 0). I fi aymomi. a! 1 RAYMOND CLIFFORD WHEELER, NORWICH, ENGLAND.

SASH-FASTENER.

neaaerr.

Application filed July 1,

To all whom it may concern:

Be it known that I, RAYMOND CLIFFORD lVHnnLnR, subject of the. King of Great Britain and Ireland, residing at Clifton House, Park Lane, Norwich, in the county of Norfolk, England, have invented certain new and useful Improvements in Sash-Fasteners, of which the following is a specification. 7

I I fix upon the top of the meeting rail of the upper sash and at one side of the same a metal plate, and arising out from it in s a vertical position is an extension provided at right angles or thereabout with a series of projecting fingers or teeth, preferably separated from each other by a given space, and these fingers or. teeth may be V shaped at their rear and free ends, viz,

those parts nearest to the glass of the upper sash, and this part of my improved device is fixed so that a sufficient space is left' (when the fastener is closed) between the back of the teeth and the glass of the upper sash, to allow the hooked end of a quad- 1 rant arm, hereafter to be referred to, to comfortably pass between the glass and'the said fingers or teeth.

Upon the top of fixture before referredto, I secure a metal plate provided with a pivot, upon which is mounted an arm capableofmaking a quad rant movement, one end of the arm being arranged to engage with the projecting fingers on the vertical piece on the upper sash when 'required at the same time passing between the projecting fingersj This" quadrant arm is slotted near themiddle to allow it to be drawn backward through the agency of a tapped nut provided on the outer end of the quadrant arm which is screw threaded to receive the same.- This screw threaded end of the revolving arm passes between aquadrant channel acting as Specification of Letters Patent.

the meeting rail, of the 1 lower sashand conveniently oppositeto the' Patented 1918. Serial No. 242,841.

a guide, which said quadrant channel is further provided with an automatic drop catch to hold the screw threaded arm in position when the fastener is in operation.

In the accompanying I drawings Figure 1 is an elevation of part of a sash window showing the metal plate with fingers or teeth fixed uponthe upper sash.

Fig. 2 is a sectional plan through the upper sashes looking down upon the meeting rails of the two sashes and showing one form of my complete fastener in its closed and fastening position. i

Fig. 3 is a similar sectional plan showing a modified form of my improved fastener when a horn projects upon the meeting rail .of the lower sash occupying space adjoining the frame when a portion of the quadrant arm takes a curved form. i

Fig. 4c shows anelevation of aportion of a sash window with the upper sash drawnj j 1 down and my improved sash fastener shown in the locked position also in elevation.

the quadrantguide and automatic catch,

elevation with the screw threaded end of *the quadrant arm' in section. and .Fig. 6

showing the device in plan. a

Figs. 8' and 9 show respectively the en- Figs. 5, 6, and 7 show to. a larger scale Figs. 5 and 7 showing the parts in front gaging end of the quadrant arm in elevation and the same engaged to the fingered or toothed rack. i v L1ke letters of reference are employed parts.

. In order to enable me to better explain the construction of the sash fastener, I will here preliminarily refer to the construction of the window to which my fastener. is

as far as possible throughout to indicate like fitted, wherein a is the lower. sash and a the meeting rail of the lower sash. The

of the upper sash 6 The glass is marked 0 and the" sash frame (Z with the parting bead d r secure upon the meeting rail of the upper sash 6 a plate 6 having a verticalcontinua- 'tion f provided with fingers or teethf dis The spaces tanced apart by the spaces 7. f are to receive and take the end of; a quadrant arm hereafter referred to and the upper sash is marked 7) and the meeting rail j In further explanation of my invention as illustrated by Figsfll to 9 inclusive, I

I fingers or teethare arrangedto engage with project on upon the quadrant arm when in a fastening position. This plate and its nally as required. as arranged to pass through the spaces f of the toothed rack and a projection at the end of the arm, 7?, engages with the splayed back end 7' at the rear of the tooth 7 when required. A quadrant guide 70 'is provided (more fully shown in Figs. 5, 6, and 7 to a larger scale) in which the front end of the quadrant arm h revolves. The safety catch m is pivoted at m 5) and operates automatically to hold the V quadrant arm in its fastened position but may be raised to release the arm.

The forward end of the quadrant arm is screw threaded and is providedwith a nut with an extension 12 of the shape shown in Figs. 5 and 6, and this nut is tapped and fitted over the screw threaded termination of the quadrant arm and when tightened up against a portion of the base plate 9 and still revolved, operates to draw the quadmakes atight engagement of the other end of the arm with the toothed rack when re .in its fastening position.

rant arm forward upon the pivot g and so quired. When, however, it is desired to release the arm from the rack the nut a is revolved and taken backward along to near the threaded portion of the arm when the quadrant arm can be pushed forward, re

leased from the rack, and swung around upon the pivot releasing the entlre fastener.

In order to better secure the quadrant arm frombeing opened from without, a guide or cover piece 0 is fixed as shownunder.

which the rear end of the arm passes when The dotted lines show the fastener movedone quarter revolution and in its released position.

1 In Fig. 8 my improved fastener is substantially as before described but in this case the quadrant arm is of special shape in order to avoid when required a projecting portion commonly called a horn above the top of the ends of the rail 6& and I have here marked the space occupied by the horn with the letter t. In this case the fastening end of the quadrant arm h is curved around as shown for the purpose of making an engagement and allowing for the position of the horn. With further reference to Figs. 5, 6, 7 8 and 9 which are drawn to a larger scale,

the parts are marked as far as possible with like letters of reference to those upon the smaller scale drawlngs, and the ralsed por:

tion upon the plate 9 against which the lower part'of the nut it bears when re quired is marked 9 The 'upper portion of this nut will also bear against the catch m and through it the guide as well.

It will be'readily understood that by using my improved fastener in the manner described the two sashes can be kept apart for the purposes of ventilation while being perfectly secured together to prevent them being opened in any way beyond that distance for which. they have been arranged.

\Vhat I claim as my invention and desire to obtain by Letters Patent is 1. A sash fastening device comprising in combination a plate attached to the upper sash of a window, a series of fingers projecting laterally on said plate, a slotted quadrant attached to the upper cross bar of the lower sash, a vertical pivot pin on said quadrant, an arm having an elongated slot engaging said pivot pin and adapted to slide longitudinally in said quadrant, and rotate through a horizontal plane about said pin an inclined hook on the end of said arm adapted to engage with any one of said series of teeth or fingers, means for drawing the sashes together and securing said arm against longitudinal movement in said quadrant, and means for securing the arm against rotation about said pivot pin when the latter is in its operative position with relation to said teeth or fingers.

2. A sash fastening device comprising, in combination, a lower sash, an upper sash, a plate secured to the lower cross bar of the upper sash, a vertically disposed extension on said plate, a series of fingers or teeth on said vertical extension at one side thereof a slotted quadrant attached to the upper cross bar of the lower sash, a slotted arm rnounted in said slotted quadrant and having a pin and slot connection with-a plate on the lower sash for rotative and endwise upper sash, a vertically disposed extension on said plate, a series .of fingers or teeth on said vertical extenslon at one s1de thereof,

va slotted quadrant attached to the upper cross bar of the lower sash, a slotted arm ing a pin and slot. connection with a plate mounted in said slotted quadrant and havon the'lower sash for rotative and endwise movement, a hook on the inner end of the slotted arm adapted to engage with any one of said series of fingers or teeth, a threaded portion on the outer end of said slotted arm, a nut mounted. on said threaded portion and engaging the slotted quadrant to move the hook into engagement with any one of said series of fingers or teeth, and an automatic catch pivotally mounted on said slotted quadrant to hold the slotted arm in its locked position.

4:. A sash fastening device comprising, in combination, a lowersash, an upper sash, a plate secured to the lower cross bar of the upper sash, a vertically disposed extension on said plate, a series of fingers or teeth on said vertical extension at one side thereof a slotted quadrant attached to the upper cross-bar of the lower sash, a curved slotted arm mounted in said slotted quadrant and having a pin and slot connection with a plate on the lower sash, for rotative and endwise movement, a hook on the inner end of the slotted arm adapted to engage with any one of said series of fingers or teeth, a threaded portion on the outer end of said quadrant arm, a nut mounted on said threaded portion and engaging the slotted quadrant to move the hook into engagement with any one of said series of fingers or teeth, and an automatic catch pivotally mounted on said slotted quadrant to hold the slotted arm in its locked position.

RAYMOND CLIFFORD WHEELER. 

